So far this team is 8-4, and it is extremely offensive, as my synergy is just enough to bet by, and the play style is centered around sweeping the other guy before he sweeps me. I haven't got to use this team much just yet but I made it mostly to try out CB Victini.

This set being the only Ninetales set I have ever used, is designed to keep my sun up, and that is especially important since this team doesn't have the ever-so-common Dugtrio to help me win the weather war. This set sacrifices some Offense for much-needed bulk, bull that allows Ninetales to survive multiple Earthquakes and Stone Edges from most threats once they are burned. His max speed allows him to outspeed common Ninetales counters such as Politoed, Tyranitar, and Gliscor. In the case of Politoed, he can use Sunny Day and have the sun back up in no-time, allowing him to absorb Politoed's Scalds with relative ease. Will-O-Wisp cripples opposing physical threats and supports the team as well as Ninetales. Flamethrower is STAB and it doesn't hit super hard, but it has some punch what with the sun and everything. Solarbeam is there instead of Energy Ball for maximum power and I can actually use it what with Sunny Day.

This guy is a BULLDOZER. Blobyolo suggested CB Victini and he is and amazing wall breaker. V-create is what I use most if the time and when boosted by the sun it can 2HKO pretty much the entire tier, absolutely devastating almost anything that is not a dedicated physical wall, even when resisted. ThunderPunch is additional coverage against things like a Gyarados trying to set up on me, although in the sun V-create is still hitting almost as hard. Zen Headbutt is never used as even when SE, V-create does more in the sun, and U-turn is for escaping and building momentum.

I have never used Mienshao outside of one time in UU, but I must say he makes a great hit and run artist, as well as a sweeper. Fake Out breaks sashes and revenge kills, U-turn lets him scout, revenge kill, take down Psychic types, and heal with Regenerator. Hi Jump Kick is STAB and hits like a train, while Stone Edge is coverage against flying types.

I absolutely love special Landorus. After but 1 Rock Polish he can tear down unprepared teams with ease. Earth Power gets STAB and after Life Orb and Sheer Force it has quite a bit of oomph. Focus Blast is coverage, and Hidden Power Ice kills Ground, Dragon, and Flying types.

Porygon-Z is actually very effective in OU, and is responsible for about 3 of my wins. Tri Attack is STAB and hits like a cannon after an Adaptability boost. Thunderbolt and Ice Beam get great coverage, and Hidden Power Fire is for sticking the steel types (Ferrothorn) that like to switch in thinking they will take a Tri Attack and be on their merry way.

Being the only defensive pokemon on the team, Forretress makes for a great physical wall, whilst giving Rapid Spun support to Ninetales and Victini, and with the ability to aid the other sweepers by setting up my own hazards, Forretress really helps the team. One trick I decided to try here is a move that transforms Forretress into a sadistic killer, bent on revenge. Counter is a move not commonly seen on Forretress, and it is also a move that is able to stop physical sweepers in their tracks, especially with Sturdy. You're gonna take away 30% of my HP with that physical move? Fine, but I'm taking 60% of yours :P
Counter can support the team by severely weakening enemies to where Meinshao or Porygon can pick them off, even killing some foes that already have damage.